package com.wanghui.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.wanghui.reggie.common.R;
import com.wanghui.reggie.entity.Category;
import com.wanghui.reggie.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/category")
@Slf4j
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增分类
     *
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category) {
        log.info("category: {}", category);
        categoryService.save(category);
        return R.success("新增分类成功");
    }

    /**
     * 分页查询
     *
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize) {
        //分页构造器
        Page<Category> pageInfo = new Page<>(page, pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> lqw = new LambdaQueryWrapper<>();
        //添加排序条件，根据sort进行排序
        lqw.orderByAsc(Category::getSort);
        //分页查询
        categoryService.page(pageInfo, lqw);
        return R.success(pageInfo);
    }

    /**
     * 根据id删除分类
     *
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long id) {
        log.info("删除分类 id为：{}", id);
        //categoryService.removeById(id);
        categoryService.remove(id);
        return R.success("分类信息删除成功");
    }

    /**
     * 根据id修改分类信息
     *
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category) {
        log.info("修改后的信息为：{}", category);
        categoryService.updateById(category);
        return R.success("修改分类信息成功");
    }

    /**
     * 菜品管理_添加菜品_根据条件查询分类数据
     *
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category) {
        //条件构造器
        LambdaQueryWrapper<Category> lambdaQueryWrapper = new LambdaQueryWrapper<>();
        //添加条件__三个参数，第一个表示判断传递进来的category是否为null,不为null了才去执行后面的内容
        lambdaQueryWrapper.eq(category.getType() != null, Category::getType, category.getType());
        //添加排序条件__按排序数进行升序排列，按修改时间进行降序排列
        lambdaQueryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        List<Category> categoryList = categoryService.list();
        return R.success(categoryList);
    }
}
